/*
 * MIT License
 *
 * Copyright (c) 2023 北京凯特伟业科技有限公司
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */
package com.je.bpm.engine.impl.bpmn.behavior;

import com.je.bpm.core.model.Activity;
import com.je.bpm.core.model.CompensateEventDefinition;
import com.je.bpm.core.model.FlowElement;
import com.je.bpm.core.model.artifact.Association;
import com.je.bpm.core.model.event.BoundaryEvent;
import com.je.bpm.core.model.process.SubProcess;
import com.je.bpm.engine.ActivitiException;
import com.je.bpm.engine.delegate.DelegateExecution;import com.je.bpm.engine.impl.context.Context;
import com.je.bpm.engine.impl.persistence.entity.CompensateEventSubscriptionEntity;
import com.je.bpm.engine.impl.persistence.entity.EventSubscriptionEntity;
import com.je.bpm.engine.impl.persistence.entity.EventSubscriptionEntityManager;
import com.je.bpm.engine.impl.persistence.entity.ExecutionEntity;
import com.je.bpm.engine.impl.util.ProcessDefinitionUtil;
import com.je.bpm.core.model.process.Process;
import java.util.List;

public class BoundaryCompensateEventActivityBehavior extends BoundaryEventActivityBehavior {

    private static final long serialVersionUID = 1L;

    protected CompensateEventDefinition compensateEventDefinition;

    public BoundaryCompensateEventActivityBehavior(CompensateEventDefinition compensateEventDefinition, boolean interrupting) {
        super(interrupting);
        this.compensateEventDefinition = compensateEventDefinition;
    }

    @Override
    public void execute(DelegateExecution execution) {
        ExecutionEntity executionEntity = (ExecutionEntity) execution;
        BoundaryEvent boundaryEvent = (BoundaryEvent) execution.getCurrentFlowElement();

        Process process = ProcessDefinitionUtil.getProcess(execution.getProcessDefinitionId());
        if (process == null) {
            throw new ActivitiException("Process model (id = " + execution.getId() + ") could not be found");
        }

        Activity compensationActivity = null;
        List<Association> associations = process.findAssociationsWithSourceRefRecursive(boundaryEvent.getId());
        for (Association association : associations) {
            FlowElement targetElement = process.getFlowElement(association.getTargetRef(), true);
            if (targetElement instanceof Activity) {
                Activity activity = (Activity) targetElement;
                if (activity.isForCompensation()) {
                    compensationActivity = activity;
                    break;
                }
            }
        }

        if (compensationActivity == null) {
            throw new ActivitiException("Compensation activity could not be found (or it is missing 'isForCompensation=\"true\"'");
        }

        // find SubProcess or Process instance execution
        ExecutionEntity scopeExecution = null;
        ExecutionEntity parentExecution = executionEntity.getParent();
        while (scopeExecution == null && parentExecution != null) {
            if (parentExecution.getCurrentFlowElement() instanceof SubProcess) {
                scopeExecution = parentExecution;

            } else if (parentExecution.isProcessInstanceType()) {
                scopeExecution = parentExecution;
            } else {
                parentExecution = parentExecution.getParent();
            }
        }

        if (scopeExecution == null) {
            throw new ActivitiException("Could not find a scope execution for compensation boundary event " + boundaryEvent.getId());
        }

        Context.getCommandContext().getEventSubscriptionEntityManager().insertCompensationEvent(
                scopeExecution, compensationActivity.getId());
    }

    @Override
    public void trigger(DelegateExecution execution, String triggerName, Object triggerData) {
        ExecutionEntity executionEntity = (ExecutionEntity) execution;
        BoundaryEvent boundaryEvent = (BoundaryEvent) execution.getCurrentFlowElement();

        if (boundaryEvent.isCancelActivity()) {
            EventSubscriptionEntityManager eventSubscriptionEntityManager = Context.getCommandContext().getEventSubscriptionEntityManager();
            List<EventSubscriptionEntity> eventSubscriptions = executionEntity.getEventSubscriptions();
            for (EventSubscriptionEntity eventSubscription : eventSubscriptions) {
                if (eventSubscription instanceof CompensateEventSubscriptionEntity && eventSubscription.getActivityId().equals(compensateEventDefinition.getActivityRef())) {
                    eventSubscriptionEntityManager.delete(eventSubscription);
                }
            }
        }

        super.trigger(executionEntity, triggerName, triggerData);
    }
}
